require(["esri/layers/LabelLayer"], function(ll)
{
    if( typeof esri.layers.LabelLayer.prototype._addLabel == 'function' )
    {
        esri.layers.LabelLayer.prototype._addLabel2 = esri.layers.LabelLayer.prototype._addLabel;
        esri.layers.LabelLayer.prototype._addLabel = function(a,b,c,e,g,k,m)
        {
            // replace \n by <br>
            a = a.replace(/\n/g, "<br />");
            this._addLabel2(a,b,c,e,g,k,m);
        }
    }
});

require(["esri/symbols/TextSymbol", "dojox/gfx/svg"], function(ts, svg)
{
    if( typeof dojox.gfx.svg.Text.prototype.setShape == 'function' )
    {
        dojox.gfx.svg.Text.prototype.setShape = function(p)
        {
            this.shape = dojox.gfx.makeParameters(this.shape, p);
            this.bbox = null;
            var r = this.rawNode, s = this.shape;
            r.setAttribute("x", s.x);
            r.setAttribute("y", s.y);
            r.setAttribute("text-anchor", s.align);
            r.setAttribute("text-decoration", s.decoration);
            r.setAttribute("rotate", s.rotated ? 90 : 0);
            r.setAttribute("kerning", s.kerning ? "auto" : 0);
            r.setAttribute("text-rendering", "optimizeLegibility");
            
            while(r.firstChild)
                r.removeChild(r.firstChild);

            if(s.text)
            { 
                var texts = s.text.replace(/<br\s*\/?>/ig, "\n").split("\n");
                var lineHeight = 1.1 * parseInt(document.defaultView.getComputedStyle(r, "").getPropertyValue("font-size"), 10); 
                if( isNaN(lineHeight) || !isFinite(lineHeight) )
                    lineHeight = 15;
                    
                for(var i = 0, n = texts.length; i < n; i++)
                { 
                    var tspan = (document.createElementNS ? document.createElementNS(dojox.gfx.svg.xmlns.svg, "tspan") : document.createElement("tspan"));
                    tspan.setAttribute("dy", i ? lineHeight : -(texts.length-1)*lineHeight/2); 
                    tspan.setAttribute("x", s.x);
                    tspan.appendChild((dojox.gfx.useSvgWeb ? document.createTextNode(texts[i], true) : document.createTextNode(texts[i]))); 
                    r.appendChild(tspan);
                }
            }

            return this;
        }
    }
});